title: A model of the sexual relations of young i.v. drug users.
authors.forename: M L
authors.initials: ML
authors.lastname: Williams
mesh_terms: D000328:Adult; D005260:Female; D015658:HIV Infections / Q000635:transmission*; D006801:Humans; D008297:Male; D012747:Sexual Partners; D019966:Substance-Related Disorders / Q000150:complications*